December weather forecast
Suomusjärvi, Finland

December

Weather in December

December, the first month of the winter in Suomusjärvi, is still a freezing cold month, with an average temperature ranging between max -0.4°C (31.3°F) and min -3.7°C (25.3°F).

Temperature

A subtle shift in Suomusjärvi's weather is observed as November turns into December, with the average high temperature reducing from a wintry 3.4°C (38.1°F) to a freezing cold -0.4°C (31.3°F). December nights in Suomusjärvi, Finland, reveal a minor deviation from daytime highs, with a mean low-temperature of -3.7°C (25.3°F).

Humidity

In December, the average relative humidity in Suomusjärvi is 91%.

Rainfall

In Suomusjärvi, Finland, during December, the rain falls for 8.5 days and regularly aggregates up to 26mm (1.02") of precipitation. In Suomusjärvi, during the entire year, the rain falls for 122 days and collects up to 276mm (10.87") of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall in Suomusjärvi is December, when snow falls for 15.3 days and typically aggregates up to 91mm (3.58") of snow.

Daylight

With an average of 5h and 54min of daylight, December has the shortest days of the year in Suomusjärvi.
On the first day of December, sunrise is at 09:04 and sunset at 15:25. On the last day of the month, sunrise is at 09:31 and sunset at 15:26 EET.

Sunshine

With an average of 1.8h of sunshine, December has the least sunshine of the year in Suomusjärvi.

UV index

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Frequently asked questions

How cold is December in Suomusjärvi?
In Suomusjärvi, in December, the average high-temperature is -0.4°C (31.3°F), and the average low-temperature is -3.7°C (25.3°F).
What is the average humidity in December in Suomusjärvi?
In Suomusjärvi, the average relative humidity in December is 91%.
How much does it rain in Suomusjärvi in December?
In Suomusjärvi, in December, during 8.5 rainfall days, 26mm (1.02") of precipitation is typically accumulated.
What is the snowiest month in Suomusjärvi?
December is the month with the most snowfall in Suomusjärvi. Snow falls for 15.3 days and accumulates 91mm (3.58") of snow.
How many days does it snow in December in Suomusjärvi?
In Suomusjärvi, Finland, during December, snow falls for 15.3 days and regularly aggregates up to 91mm (3.58") of snow.
What is the month with the shortest days in Suomusjärvi?
December has the shortest days of the year in Suomusjärvi, Finland, with an average of 5h and 54min of daylight.
What is the average length of the day in December in Suomusjärvi?
In Suomusjärvi, Finland, the average day length in December is 5h and 55min.
What time are sunrise and sunset in December in Suomusjärvi?
On the first day of December, sunrise is at 09:04 and sunset at 15:25. On the last day of the month, sunrise is at 09:31 and sunset at 15:26 EET.
What is the month with the least sunshine in Suomusjärvi?
December has the least sunshine of the year in Suomusjärvi, with an average of 1.8h of sunshine.
How long on average sun shines in December in Suomusjärvi?
The average sunshine duration in December in Suomusjärvi is 1.8h.
What are the months with the lowest UV index in Suomusjärvi?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1.
How high is the UV index in December in Suomusjärvi?
In December, the average daily maximum UV index in Suomusjärvi, Finland, is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Suomusjärvi, Finland
  • Average high temperature in December: -0.4°C

The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (-3.2°C).

  • Average low temperature in December: -3.7°C

The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-7.3°C).

Average pressure in December
Suomusjärvi, Finland
  • Average pressure in December: 1008.1mbar

The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).

Average wind speed in December
Suomusjärvi, Finland
  • Average wind speed in December: 15.2km/h

The windiest month (with the highest average wind speed) is December (15.2km/h).
The calmest month (with the lowest average wind speed) is August (11km/h).

Average humidity in December
Suomusjärvi, Finland
  • Average humidity in December: 91%

The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (70%).

Average rainfall in December
Suomusjärvi, Finland
  • Average rainfall in December: 26mm

The wettest month (with the highest rainfall) is July (35mm).
The driest month (with the least rainfall) is April (14mm).

Average rainfall days in December
Suomusjärvi, Finland
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in December
Suomusjärvi, Finland
  • Average snowfall in December: 91mm

The month with the highest snowfall is December (91mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Suomusjärvi, Finland
  • Average snowfall days in December: 15.3 days

The month with the highest number of snowfall days is December (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Suomusjärvi, Finland
  • Average daylight in December: 5h and 5min

The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).

  • Average sunshine in December: 1h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).

Average sunshine days in December
Suomusjärvi, Finland
  • Average sunshine days in December: 10.4 days

The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is December (10.4 days).

Average UV index in December
Suomusjärvi, Finland
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in December
Suomusjärvi, Finland
  • Average cloud cover in December: 74

The months with the most cloud cover are February and December (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility in December
Suomusjärvi, Finland
  • Average visibility in December: 8km

The months with the highest visibility are May, June, July, August and September (9km).
The months with the lowest visibility are January, February and March (7km).

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